Phase space Langevin equation for spin relaxation in a dc magnetic field
Citation:
Yu. P. Kalmykov, W. T. Coffey and S. V. Titov, Phase space Langevin equation for spin relaxation in a dc magnetic field, Europhysics Letters, 88, 1, 2009, 17002Download Item:
Abstract:
A Langevin equation for the quantum Brownian motion of a spin of arbitrary size in a uniform external dc magnetic field is derived from the phase space master equation in the weak coupling and narrowing limits, for the quasiprobability distribution (Wigner) function of spin orientations in the configuration space of polar and azimuthal angles following methods long familiar in quantum optics. The closed system of differential-recurrence equations for the statistical moments describing magnetic relaxation of the spin is obtained as an example of applications of this equation.
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Irish Research Council for Science Engineering and Technology
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http://people.tcd.ie/wcoffeyDescription:
PUBLISHED
Author: COFFEY, WILLIAM THOMAS
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IOP PublishingType of material:
Journal ArticleSeries/Report no:
Europhysics Letters;88;
1;
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